How can I clean the bottom of my turkey drier after I burned it. Yesterday on my second brew of the day I put LME in after sterling grains and some must have sat on the bottom and burned. Not sure how as I.kept storing but it did. Will that also affect my brew any?

If its a turkey fryer it's most likely aluminium, so PBW would not be an option. Try putting some water in it and boiling it for a while, then let it sit a while, and use some old fashion elbow grease.